pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in a reference leak here. Use pm_runtime_resume_and_get to fix it. Qinglang Miao (3): dmaengine: stm32-dma: fix reference leak in stm32_dma dmaengine: stm32-dmamux: fix reference leak in stm32_dmamux dmaengine: stm32-mdma: fix reference leak in stm32-mdma drivers/dma/stm32-dma.c | 4 ++-- drivers/dma/stm32-dmamux.c | 6 +++--- drivers/dma/stm32-mdma.c | 4 ++-- 3 files changed, 7 insertions(+), 7 deletions(-) -- 2.23.0